I wonder if it isn't belied by the sign itself. If this sign were intended to serve the purpose of informing the reader how much it costs to check the list with the prices available from the guard, you'd find that it seems to fulfill the four tenets listed. But it would be a terrible sign for that purpose.

Good Design visually aligns its type and doesn't use a ruler to do it, it also kerns, rather than using equal measures between character, and chooses a word space that suits that kerning. Above all it wouldn't mix typefaces in a simple message without a damned good reason, running out of Es is not a good reason.